CN215832677U

CN215832677U - Ultrahigh precision detection device for perpendicularity center height of piston round hole

Info

Publication number: CN215832677U
Application number: CN202122188922.8U
Authority: CN
Inventors: 王亚辉
Original assignee: Shenzhen Mimi Automation Co ltd
Current assignee: Shenzhen Mimi Automation Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-02-15
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses an ultra-high precision detection device for the perpendicularity center height of a piston round hole, which comprises a clamping device, a cylinder device, a measuring device, a shooting device and a containing device, wherein the cylinder device is arranged on the piston round hole; the clamping device and the measuring device are both arranged on the cylinder device; the shooting device is arranged on one side of the containing device; the other side of the containing device is provided with an up-and-down kinematic pair, and the cylinder device is arranged on the up-and-down kinematic pair; the clamping device clamps the piston; the cylinder device drives the clamping device and the measuring device to move; the measuring device measures the round hole; the shooting device detects the center height of the verticality of the round hole and is positioned on the same horizontal plane with the round hole; the containing device contains the piston and drives the piston to move; the clamp cylinder pushes the first clamp and the second clamp to move the clamping piston through the second chute; the telescopic cylinder pushes the measuring needle to move forwards and penetrate through the first through hole and the round hole; the measuring needle is pressed below the round hole of the piston, about 1kg of pressure is kept, and the influence of the gap between the measuring needle and the round hole on measurement is eliminated.

Description

Ultrahigh precision detection device for perpendicularity center height of piston round hole

Technical Field

The utility model relates to the field of precision detection, in particular to an ultrahigh precision detection device for the perpendicularity center height of a piston round hole.

Background

The piston is an important part of the engine, and during operation, the piston always reciprocates back and forth in the cylinder, so that the matching precision of the piston and the cylinder is very high. The perpendicularity of the circular hole to the cylindrical surface of the outer circle, namely the height of the center, needs to be kept vertical, and the perpendicularity is strictly controlled all the time.

The existing verticality detection clamp generally uses a micrometer to detect, and the detection method and the detection tool are not high in detection precision, time-consuming and labor-consuming, low in detection efficiency of workers and capable of delaying construction period.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides an ultrahigh precision detection device for the perpendicularity center height of a piston round hole.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an ultra-high precision detection device for the verticality center height of a piston round hole comprises a clamping device, a cylinder device, a measuring device, a shooting device and a containing device; the clamping device and the measuring device are both arranged on the air cylinder device; the shooting device is arranged on one side of the containing device; an up-down kinematic pair is arranged on the other side of the containing device, and the air cylinder device is arranged on the up-down kinematic pair; the clamping device is used for clamping the piston; the cylinder device is used for driving the clamping device and the measuring device to move; the measuring device is used for measuring the round hole; the shooting device is used for detecting the height of the center of the verticality of the round hole, and the shooting device and the round hole are positioned on the same horizontal plane; the containing device is used for containing the piston and driving the piston to move.

Preferably, the cylinder device comprises a telescopic cylinder and a clamp cylinder, and the telescopic cylinder is arranged on the up-and-down kinematic pair; a first sliding groove is formed in the telescopic cylinder.

Preferably, the clamping device comprises a first clamp and a second clamp, and the first clamp and the second clamp are both arranged on the clamp cylinder; the clamp cylinder is provided with a second sliding groove, and the first clamp and the second clamp both slide in the second sliding groove; the first clip and the second clip correspond in position.

Preferably, the measuring device comprises a stylus; the first clamp and the second clamp are both provided with a first through hole, and the positions of the first through holes correspond to those of the second through holes; one end of the measuring pin is arranged in the first sliding groove, and the other end of the measuring pin penetrates through the first through hole.

Preferably, the containing device comprises a rotating disc and a plurality of cushion blocks, and the cushion blocks are arranged on the rotating disc in an equidistance surrounding manner; the cushion block is provided with a second through hole, and the turntable is provided with a third through hole at a position corresponding to the second through hole; a top plate capable of moving up and down is arranged at the position, corresponding to the third through hole, of the turntable; the top plate may pass through the third through hole and the second through hole.

Preferably, the shooting device comprises a shooting camera, and the shooting camera is arranged at a vertical angle with the telescopic cylinder and is positioned on the same horizontal plane with the piston to be measured.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model designs an ultrahigh precision detection device for the perpendicularity center height of a piston round hole, wherein a clamp cylinder pushes a first clamp and a second clamp to move through a second sliding groove so as to clamp a piston; the measuring needle moves forwards under the pushing of the telescopic cylinder, penetrates through the first through hole and then penetrates through the round hole; the top plate can pass through the third through hole and the second through hole; after the measuring pin penetrates through the round hole, the top plate below the rotary table is jacked upwards, penetrates through a third through hole in the rotary table and a second through hole in the cushion block, and jacks up the piston by about 5 mm; the measuring needle is pressed below the round hole of the piston, about 1kg of pressure is kept, the piston is propped by the top plate, and the influence of the gap (about 0.03 mm) between the measuring needle and the round hole on measurement is eliminated; shooting by a shooting camera, detecting the perpendicularity error of the circular hole to the cylindrical surface of the outer circle and the distance from the bottom of the piston to the lower edge of the measuring needle, and calculating the distance from the circular hole to the bottom surface, namely the center height, by a computer according to the diameter of the previously measured circular hole; the detection is more accurate, time and labor are saved, and the cost is saved.

Drawings

FIG. 1 is a schematic structural diagram according to the present invention;

FIG. 2 is a schematic diagram of the detection of the height of the center of perpendicularity according to the present invention;

fig. 3 is a schematic structural view of the stylus according to the present invention passing through a circular hole and having a gap.

Illustration of the drawings:

1. a clamping device, 2, a cylinder device,

3. a measuring device, 4, a shooting device,

5. a containing device, 6, an up-and-down kinematic pair,

7. a piston 8, a round hole is arranged on the piston,

11. the first clip, 12, the second clip,

13. a first through hole, 21, a telescopic cylinder,

22. a clamp cylinder 31, a measuring needle,

41. a camera, 51, a turntable,

52. the cushion block 211, the first sliding groove,

221. the second chute, 511, the top plate,

521. a second via.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, an ultra-high precision detection device for the perpendicularity center height of a piston circular hole comprises a clamping device 1, a cylinder device 2, a measuring device 3, a shooting device 4 and a containing device 5; the clamping device 1 and the measuring device 3 are both arranged on the cylinder device 2; the shooting device 4 is arranged on one side of the containing device 5; an up-down kinematic pair 6 is arranged at the other side of the containing device 5, and the cylinder device 2 is arranged on the up-down kinematic pair 6; the clamping device 1 is used for clamping the piston 7; the cylinder device 2 is used for driving the clamping device 1 and the measuring device 3 to move; the measuring device 3 is used for measuring the round hole 8; the shooting device 4 is used for detecting the height of the center of the verticality of the round hole 8, and the shooting device 4 and the round hole 8 are positioned on the same horizontal plane; the containing device 5 is used for containing the piston 7 and driving the piston 7 to move.

The cylinder device 2 comprises a telescopic cylinder 21 and a clamp cylinder 22, and the telescopic cylinder 21 is arranged on the up-and-down kinematic pair 6; the telescopic cylinder 21 is provided with a first sliding chute 211.

The clamping device 1 comprises a first clamp 11 and a second clamp 12, wherein the first clamp 11 and the second clamp 12 are both arranged on a clamp cylinder 22; the clamp cylinder 22 is provided with a second sliding groove 221, and the first clamp 11 and the second clamp 12 both slide in the second sliding groove 221; the first clip 11 and the second clip 12 correspond in position; the clamp cylinder 22 pushes the first clamp 11 and the second clamp 12 to move through the second sliding slot 221, and clamps the piston 7.

The measuring device 3 comprises a stylus 31; the first clamp 11 and the second clamp 12 are respectively provided with a first through hole 13, and the positions of the first through holes 13 correspond to each other; one end of the measuring pin 31 is arranged in the first sliding chute 211, and the other end of the measuring pin 31 penetrates through the first through hole 13; the measuring needle 31 moves forwards under the push of the telescopic cylinder 21, passes through the first through hole 13 and then passes through the round hole 8.

The containing device 5 comprises a rotating disc 51 and a plurality of cushion blocks 52, and the cushion blocks 52 are arranged on the rotating disc 51 in an encircling manner at equal intervals; the cushion block 52 is provided with a second through hole 521, and the turntable 51 is provided with a third through hole (not shown) at a position corresponding to the second through hole 521; a top plate 511 which can move up and down is arranged at the position of the turntable 51 corresponding to the third through hole; the top plate 511 may pass through the third and second through holes 521; after the measuring pin 31 passes through the round hole 8, the top plate 511 below the rotary disc 51 is jacked upwards, passes through the third through hole on the rotary disc 51 and the second through hole 521 on the cushion block 52, the piston 7 is jacked up by about 5mm, at the moment, the measuring pin 31 is installed on the telescopic cylinder 21, the telescopic cylinder 21 is arranged on the up-and-down kinematic pair 6, the piston 7 carries the measuring pin 31 and the telescopic cylinder 21 together to be jacked up by about 5mm, the measuring pin 31 is still kept unchanged in orientation and only passively moves upwards by about 5mm, the measuring pin 31 is pressed below the round hole 8, the pressure of about 1kg is kept, the piston 7 is jacked up by the top plate 511, and the influence of the gap (about 0.03 mm) between the measuring pin 31 and the round hole 8 on measurement is eliminated.

The shooting device 4 comprises a shooting camera 41, the shooting camera 41 is arranged at a vertical angle with the telescopic cylinder 21 and is positioned at the same horizontal plane with the piston 7 to be detected; the shooting camera 41 shoots, detects the verticality error of the round hole 8 to the cylindrical surface of the outer circle and the distance from the bottom of the piston 7 to the lower edge of the measuring needle 31,

the working principle of the utility model is as follows: the piston 7 is rotated to the position of the measuring needle 31 by the turntable 51, the clamp cylinder 22 pushes the first clamp 11 and the second clamp 12 to move through the second sliding groove 221, the piston 7 is clamped, and when the piston 7 is clamped, the first clamp 11 and the second clamp 12 do not actually clamp the piston 7 completely, but a gap of about 0.1-0.3 is formed between the piston 7 and the first clamp 11, so that the first clamp 11 and the second clamp 12 can limit the piston 7 not to move too far when the measuring needle 31 is inserted, and when the round hole 8 is not completely aligned with the measuring needle 31, the measuring needle 31 can smoothly pass through the round hole 8 by virtue of free floating of the piston 7 and taper guiding of the front section of the measuring needle 31; the first clamp 11 and the second clamp 12 clamp the piston 7, the center of the piston 7 is approximately positioned, but a gap exists, the piston 7 can rotate freely, meanwhile, the measuring needle 31 moves forwards under the push of the telescopic cylinder 21, penetrates through the first through hole 13 and then penetrates into the circular hole 8, then the clamp cylinder 22 enables the first clamp 11 and the second clamp 12 to be opened to leave a photographing space, the top plate 511 below the rotary disc 51 is jacked upwards, the piston 7 is jacked up by about 5mm through the third through hole on the rotary disc 51 and the second through hole 521 on the cushion block 52, at the moment, the measuring needle 31 is arranged on the telescopic cylinder 21, the telescopic cylinder 21 is arranged on the up-and-down movement pair 6, the piston 7 carries the measuring needle 31 and the telescopic cylinder 21 to be jacked up by about 5mm, the measuring needle 31 is still kept unchanged in orientation and only moves upwards by about 5mm passively, the measuring needle 31 is pressed on the lower side of the circular hole 8, about 1kg of pressure is kept, the piston 7 is jacked by the top plate 511, the influence of the gap (about 0.03 mm) between the measuring needle 31 and the round hole 8 on the measurement is eliminated, then the shooting camera 41 shoots, the verticality error of the round hole 8 to the cylindrical surface and the distance from the bottom of the piston 7 to the lower side of the measuring needle 31 are detected, and then the computer calculates the distance from the round hole 8 to the bottom surface, namely the center height according to the diameter of the round hole measured in the front; after the detection is finished, the first clamp 11 and the second clamp 12 clamp the piston 7 again, the top plate 511 is reset, and the measuring pin 31 moves backwards through the telescopic cylinder 21; the gripper cylinder 22 allows the first gripper 11 and the second gripper 12 to open, the piston 7 is transferred to the next process, and the machine then places the piston 7 in the appropriate magazine according to the detection of the piston 7.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An ultrahigh precision detection device for the perpendicularity center height of a piston round hole is characterized by comprising a clamping device, a cylinder device, a measuring device, a shooting device and a containing device; the clamping device and the measuring device are both arranged on the air cylinder device; the shooting device is arranged on one side of the containing device; an up-down kinematic pair is arranged on the other side of the containing device, and the air cylinder device is arranged on the up-down kinematic pair; the clamping device is used for clamping the piston; the cylinder device is used for driving the clamping device and the measuring device to move; the measuring device is used for measuring the round hole; the shooting device is used for detecting the height of the center of the verticality of the round hole, and the shooting device and the round hole are positioned on the same horizontal plane; the containing device is used for containing the piston and driving the piston to move.

2. The ultrahigh precision detection device for the perpendicularity center height of the piston circular hole is characterized in that the cylinder device comprises a telescopic cylinder and a clamp cylinder, and the telescopic cylinder is arranged on the up-and-down motion pair; a first sliding groove is formed in the telescopic cylinder.

3. The ultra-high precision detection device for the verticality center height of the circular hole of the piston as claimed in claim 2, wherein the clamping device comprises a first clamp and a second clamp, and the first clamp and the second clamp are both arranged on the clamp cylinder; the clamp cylinder is provided with a second sliding groove, and the first clamp and the second clamp both slide in the second sliding groove; the first clip and the second clip correspond in position.

4. The ultra-high precision detection device for the perpendicularity center height of the piston circular hole as claimed in claim 3, wherein the measuring device comprises a measuring needle; the first clamp and the second clamp are both provided with a first through hole, and the positions of the first through holes correspond to those of the second through holes; one end of the measuring pin is arranged in the first sliding groove, and the other end of the measuring pin penetrates through the first through hole.

5. The ultra-high precision detection device for the perpendicularity center height of the piston round hole is characterized in that the containing device comprises a rotary disc and a plurality of cushion blocks, and the cushion blocks are arranged on the rotary disc in an equidistant surrounding mode; the cushion block is provided with a second through hole, and the turntable is provided with a third through hole at a position corresponding to the second through hole; a top plate capable of moving up and down is arranged at the position, corresponding to the third through hole, of the turntable; the top plate may pass through the third through hole and the second through hole.

6. The ultra-high precision detection device for the perpendicularity center height of the piston round hole as recited in claim 2, wherein the shooting device comprises a shooting camera, and the shooting camera is arranged at a vertical angle with the telescopic cylinder and is positioned at the same horizontal plane with the piston to be detected.